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Underground Railroad

The Underground Railroad was a network of secret routes and safe houses used by 19th-century black slaves in the United States to escape to free states and Canada with the aid of abolitionists and allies who were sympathetic to their cause. The term is also applied to the abolitionists, both black and white, free and enslaved, who aided the fugitives. Various other routes led to Mexico or overseas. While an "underground railroad" running south toward Florida, then a Spanish possession, existed from the late 17th century until shortly after the American Revolution, the network now generally known as the Underground Railroad was formed in the early 19th century, and reached its height between 1850 and 1860. One estimate suggests that by 1850, 100,000 slaves had escaped via the "Railroad". British North America, where slavery was prohibited, was a popular destination, as its long border gave many points of access. More than 30,000 people were said to have escaped there via the network during its 20-year peak period, although U.S. Census figures account for only 6,000. Some fugitives' stories are documented in The Underground Railroad by William Still.